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authorSteve French <sfrench@us.ibm.com>2008-12-02 20:24:33 +0300
committerSteve French <sfrench@us.ibm.com>2008-12-26 05:29:10 +0300
commit13a6e42af8d90e2e8eb7fa50adf862a525b70518 (patch)
tree5d6021da7bc49b75cca5a0947f89bde7233ebce4 /fs/cifs/cifsfs.h
parentd5c5605c27c92dac6de1a7a658af5b030847f949 (diff)
downloadlinux-13a6e42af8d90e2e8eb7fa50adf862a525b70518.tar.xz
[CIFS] add mount option to send mandatory rather than advisory locks
Some applications/subsystems require mandatory byte range locks (as is used for Windows/DOS/OS2 etc). Sending advisory (posix style) byte range lock requests (instead of mandatory byte range locks) can lead to problems for these applications (which expect that other clients be prevented from writing to portions of the file which they have locked and are updating). This mount option allows mounting cifs with the new mount option "forcemand" (or "forcemandatorylock") in order to have the cifs client use mandatory byte range locks (ie SMB/CIFS/Windows/NTFS style locks) rather than posix byte range lock requests, even if the server would support posix byte range lock requests. This has no effect if the server does not support the CIFS Unix Extensions (since posix style locks require support for the CIFS Unix Extensions), but for mounts to Samba servers this can be helpful for Wine and applications that require mandatory byte range locks. Acked-by: Jeff Layton <jlayton@redhat.com> CC: Alexander Bokovoy <ab@samba.org> Signed-off-by: Steve French <sfrench@us.ibm.com>
Diffstat (limited to 'fs/cifs/cifsfs.h')
-rw-r--r--fs/cifs/cifsfs.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/cifs/cifsfs.h b/fs/cifs/cifsfs.h
index 074de0b5064d..fb676076946b 100644
--- a/fs/cifs/cifsfs.h
+++ b/fs/cifs/cifsfs.h
@@ -101,5 +101,5 @@ extern long cifs_ioctl(struct file *filep, unsigned int cmd, unsigned long arg);
extern const struct export_operations cifs_export_ops;
#endif /* EXPERIMENTAL */
-#define CIFS_VERSION "1.55"
+#define CIFS_VERSION "1.5666666"
#endif /* _CIFSFS_H */